(percutaneous epididymal sperm aspiration) a method of assisted conception in which spermatozoa are removed directly from the *epididymis under local anaesthetic. The sperm are then used to fertilize egg cells in vitro (see ICSI).
(intracytoplasmic sperm injection) a technique of assisted conception that has revolutionized the treatment of severe male infertility. Spermatozoa are aspirated or extracted from the testis or epididymis (see MESA; PESA) and a single sperm is injected into the cytoplasm of a secondary *oocyte in vitro. The fertilized ovum is then implanted into the uterus.... icsi
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